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* module/system/base/compile.scm (next-pass): Invoke the language's compiler chooser if there is more than one compiler. (compute-compiler): Ensure from and to are languages. * module/system/base/language.scm (<language>): Add compiler-chooser field. * module/language/brainfuck/spec.scm (choose-compiler, brainfuck): Define a compiler chooser.
47 lines
1.8 KiB
Scheme
47 lines
1.8 KiB
Scheme
;;; Brainfuck for GNU Guile.
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;; Copyright (C) 2009-2010,2020 Free Software Foundation, Inc.
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;; This library is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU Lesser General Public
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;; License as published by the Free Software Foundation; either
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;; version 3 of the License, or (at your option) any later version.
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;;
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;; This library is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; Lesser General Public License for more details.
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;;
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;; You should have received a copy of the GNU Lesser General Public
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;; License along with this library; if not, write to the Free Software
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;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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;; 02110-1301 USA
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;;; Code:
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(define-module (language brainfuck spec)
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#:use-module (language brainfuck compile-tree-il)
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#:use-module (language brainfuck compile-scheme)
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#:use-module (language brainfuck parse)
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#:use-module (system base language)
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#:export (brainfuck))
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; The new language is integrated into Guile via this (define-language)
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; specification in the special module (language [lang] spec).
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; Provided is a parser-routine in #:reader, a output routine in #:printer
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; and one or more compiler routines (as target-language - routine pairs)
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; in #:compilers. This is the basic set of fields needed to specify a new
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; language.
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(define (choose-compiler compilers optimization-level opts)
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(cons 'tree-il compile-tree-il))
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(define-language brainfuck
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#:title "Brainfuck"
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#:reader (lambda (port env) (read-brainfuck port))
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#:compilers `((tree-il . ,compile-tree-il)
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(scheme . ,compile-scheme))
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#:compiler-chooser choose-compiler
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#:printer write
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)
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